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Hello,
I follow your tuto for callback. It work well with classic dropdown but not with multi-select.
Under the ‘Choices Callback’ field I don’t see the ‘Parent Option’
So the function don’t work:
function getStates() {
//get the value from the ‘parent’ field, sent via the AJAX post.
$choice = $_POST[‘parent_option’];
I would like :
Select a first categorie
Then open a multi-select choice for this categorie
Thank you